This file is indexed.

/usr/lib/pd/extra/cyclone/atanh~-help.pd is in pd-cyclone 0.1~alpha55-3.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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#N canvas 1309 377 616 409 10;
#X declare -lib cyclone;
#X text 6 315 input values should be constrained between -1 and 1;
#X text 236 97 this is probably only useful for mathematical calculations
;
#X obj 28 109 *~ 0.999;
#X obj 28 86 cycle~ 2;
#X msg 215 138 range -3.14159 3.14159;
#X obj 160 112 -~ 0.999;
#X obj 160 89 *~ 2;
#X obj 160 67 phasor~ 2;
#X text 16 35 Arc Hyperbolic tangent function (atanh(x)) for signals
;
#X text 22 330 Note: asymptotic to infinity around -1 and 1;
#X obj 388 40 import cyclone;
#X obj 26 164 Scope~ 130 130 256 3 128 -3.14159 3.14159 0 0 0 0 102
255 51 135 135 135 0;
#X obj 171 168 Scope~ 130 130 256 3 128 -3.14159 3.14159 0 0 0 0 102
255 51 135 135 135 0;
#X obj 28 136 atanh~;
#X obj 159 136 atanh~;
#X connect 2 0 13 0;
#X connect 3 0 2 0;
#X connect 4 0 11 0;
#X connect 4 0 12 0;
#X connect 5 0 14 0;
#X connect 6 0 5 0;
#X connect 7 0 6 0;
#X connect 13 0 11 0;
#X connect 14 0 12 0;